Improvement in self-acting mules for spinning



F. OCO'INHR()BINSON.`

improvement in Self-acting Mules for Spinning. No. 123,199. n Patentedlamaonsn.

er Les I grew FEARGUS OCONNOR ROBINSON, OF FALL RIVER, MASSACHUSETTS.

IMPROVEMENT IN SELF-ACTING MULES FOR SPINNING.

Specification forming part of Letters Patent No. 123,199, dated January 30, 1872.

Specification describing a new and useful Improvement in Spinning-Mules, invented by FEARGUS OC. ltonmsoN, ot' Fall River, in the county of Bristol and State ot' lllassachusetts.

My invention consists ot' an enlargement ou the scroll or wheel ot' the backjack band ot' the Sharp and Roberts and other like spinningmules, so arranged that just previous t0 the end ofthe inward or winding-on movement of the carriage the back-jack band-which is the one that regulates the movement ot' the carriage when it is drawn out by the front jack-band-will be wound upon the said enlargement so as to considerably increase the tension ot' the front jack or drawing-out band, for giving the carriage a quicker move ment by said tension-as the said back jackband is delivered from the said enlargement at the beginning and during a small portion ofthe outward movementthan the ordinary movement and faster than threads are delivered from. the rollers, for taking out the kinks which get in the yarns when slackened up by the rising of the fallers to let said yarns run up t0 the points of the spindles, ready for twisting as the carriage runs out again. My ilnprovement dii'ers from the. arrangement of' the en largement on the scroll which works the front jack band or drawing-out band in that, while it pulls out the kinks, it does not put drag7 in the yarn--that is, it does not draw out the yarns or threads any iiner than they are drawn without it, as the other arrangement does, for the slacking oit' ot' the dra\\'ingout band compensates for the accelerated motion ofthe carriage in the n'rst part of its movement, so that, notwithstanding such accelerated movement, the carriage does not move any further during the whole stretch than it would it' the. enlarge ment was not used; whereas, in the other arrangement-that is, where the enlargement is on the drawing-out scroll and the accelerated motion is caused by the running of the cord 0n to the enlargement at the beginning of the outward movementthe gain otl the carriage on the delivery of the rollers is kept up throughout thestretch, and thus more stretch or drag is putin thc yarn than is desirable.

Figure l is a side elevation of some parts of aI mule; and Fig. 2 is a top view, illustrating` my improvement.

Similar letters of reference indicate corresponding part-s. A

A is the carriage, B the front jackfband, and (J its scroll for drawing the carriage out. Dis the. back jack-band and E its scroll for regulating the carriage when it runs out. F is the i'ront drawing-in band; Cr, the back drawingin band for regulating the inward movement otA the carriage; and H, the scroll by which both are actuated. The bands l) and F work over loose pulleys I K at the inner ends of the stretch, and the bands B and Gr work over fast pulleys on the shaft L which works the sector M, alternately, one being in gear when moving one way and the other when moving the other way. J represents the rollers. N represents the enlargement 0n the scroll E, whereon the back jack-band which regulates the movement ofthe carriage runs, as before. stated, just previous to the arrival ot' the carriage at the end ot' the movement inward, to increase the tension of the front jack-band B, and thereby cause the aforesaid quick movement of the carria ge during the first part ofthe outward movement and while said rope D is running oi the said enlargement. The scrolls E and U are on the same shaft, which is reversed in its motion at the proper times. and one cord winds on when the other winds O'.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent- The back jack-band scroll E, having an enlargement, N, arranged for the band l) to run on during a small portion otl the last part of the inward movement of the carriage, and ott' during the fore part ot the outward movement, all substantially as specied.

FEARGUS OCON N OR ROBINSON.

Witnesses WILLIAM LAW, EDAIUND SCHoLEs. 

